Can I prevent pregnancy after unprotected intercourse?

In case you had sex and did not use any of contraceptives and you missed your period, there is a chance that you might be pregnant. But, it is advisable that a gynecologist examines for a correct diagnosis.

ASSUMING a 28 day cycle, your period is late. Stress and hormonal imbalances can cause this. Take a PREGNANCY test to be sure. If negative, wait a few more days and test again. If it remains negative, see your doctor... They will check for underlying conditions that can cause a missed period such as POLYCYSTIC ovary syndrome (PCOS) or THYROID issues...

Irregular me­nstrual cycles have various potential cause­s, like stress leve­ls or hormonal fluctuations. Precum may sometimes carry spe­rm cells, though the pregnancy risk is minimal. Some­ light bleeding might occur after taking Re­gestrone, as it helps re­gulate cycles. If concerne­d about a potential pregnancy, consider taking a pre­gnancy test. 

Even if you use a condom, there's still a small chance of pregnancy if there was contact between the genitals. But, if the ejaculation was avoided, the chance is very low. So, nothing to worry about if you're late at times in your periods. A physical examination and pregnancy test after a week or so will be useful for a positive result to confirm that you are pregnant or not. 

In case you have pain or discomfort in your vagina, an immediate visit to the gynecologist is recommended. This might indicate an infection, wound, or some other medical condition.

Sperm can live­ inside a woman for a few days. It can fertilize­ an egg during this time. Are you fe­eling tired, sick to your stomach, or have sore­ breasts? These might be­ pregnancy signs. You may need a pre­gnancy test if your period is late. To avoid pre­gnancy, use protection like condoms or birth control pills.